U.S. News & World Report reveal the best diets for 2018.
It is estimated that around 45 million people in the United States go on a diet each year, with weight loss being the primary goal.
However, whether you're dieting to lose weight or simply to improve overall health, sticking to a specific eating plan can be challenging. With so many diets to choose from, how can you tell which one will work for you?
U.S. News & World Report put together a panel of health experts every year to evaluate the most popular diets in the U.S.
This year, the experts assessed 40 diets, ranking them from lowest to highest in seven categories, including the best diets for weight loss, diabetes, and heart health. So, we take a look at some of the key results.
The best diets for weight loss
For the majority of dieters, weight loss is the ultimate goal, but losing weight and keeping it off is far from easy.
Research suggests that approximately 30–35 percent of weight lost from dieting is regained within 1 year. But it is possible to maintain weight loss. It's just a matter of finding the right eating plan.
The U.S. News & World Report panel of experts evaluated 40 popular diets for their effects on both short- and long-term weight loss, noting that some people want to lose weight quickly, while others want to maintain their weight loss for years to come.
The health experts rated Weight Watchers as the best diet on both accounts, scoring 4 out of 5 for short-term weight loss, and 3.5 out of 5 for long-term weight loss.
One of the longest-running, well-known commercial diets, Weight Watchers incorporates a points system, wherein foods and beverages are assigned points based on their nutritional values, and dieters are assigned a daily points allowance.
According to U.S. News & World Report, the expert panel "appreciated the program's support system, which helps dieters keep the pounds off."
The Volumetrics Diet came in at second place for best weight loss diet, scoring 3.8 out of 5 for short-term weight loss and 3.3 out of 5 for long-term weight loss.
Designed by Barbara Rolls, who is a professor of nutrition working at Pennsylvania State University in Centre County, the Volumetrics Diet focuses on putting foods with low-energy density, such as low-fat milk, grains, and non-starchy fruits and vegetables, at the forefront of one's diet, as well as limiting foods with high-energy density.
The best diets for heart health
A poor diet can increase the risk of heart disease, because eating food high in fat can lead to high blood pressure, high cholesterol levels, and obesity, which are major risk factors for the condition.
But which eating plan is best for a healthy heart? For this category, the health experts analyzed each of the 40 diets and gave them average heart-health ratings.
The Dietary Approaches to Stop Hypertension (DASH) diet took first place in this category.
Developed by the National Heart, Lung, and Blood Institute — a part of the National Institutes of Health (NIH) — the DASH diet is high in fruits, vegetables, whole grains, fish, poultry, and low-fat dairy, but it limits foods high in sugar and saturated and trans fats.
The DASH diet was also ranked the best overall diet.
The Mediterranean diet — which emphasizes consuming fish and seafood at least twice weekly, alongside regular consumption of fruits, vegetables, legumes, and whole grains — took joint second place for best heart-healthy diet, alongside the Ornish diet.
With the Ornish diet, fat is limited to 10 percent of daily calories, and foods are divided into five groups, from the least to most healthful.
The best diets for diabetes
The Mediterranean diet not only ranked highly for one of the best heart-healthy diets, but it also took the crown for the best diabetes diet, scoring 3.7 out of 5.
Although eating a healthful diet is important for all of us, people with diabetes need to be extra cautious; skipping meals or eating the wrong foods may lead to problematic highs and lows in blood glucose levels.
According to the panel, "The Mediterranean diet is a great option for preventing or controlling diabetes. [...] Some research has shown that diabetics on a Mediterranean diet may improve their levels of hemoglobin A1C, a measure of blood sugar over time."
The DASH diet makes yet another appearance here, ranking second in the best diabetes diet category, with the experts noting that "its menu looks a lot like widely accepted nutritional guidelines for those with the condition."
Whichever eating plan that you decide is best for you, it's important to note that physical activity is just as important as the foods you eat.
Current guidelines recommend that adults should engage in at least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity aerobic activity every week.